GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 512045  Size: SH
  1. Remove the rear wiper arm. Refer to Rear Window Wiper Arm Replacement .
  2. Remove the rear wiper motor drive shaft nut.
  3. Remove the washer and seal from the wiper motor drive shaft.
  4. Remove the liftgate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  5. Remove the rear wiper motor screws.
  6. Remove the rear wiper motor from the liftgate.

  7. Object Number: 812688  Size: SH
  8. Disconnect the rear wiper motor electrical connector.
  9. Remove the rear wiper motor from the vehicle.

Installation Procedure


    Object Number: 812688  Size: SH
  1. Install the rear wiper motor electrical connector.

  2. Object Number: 512045  Size: SH
  3. Position the rear wiper motor to the liftgate.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the rear wiper motor screws.
  6. Tighten
    Tighten the screws to 6 N·m (53 lb in).

  7. Install the liftgate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  8. Install the washer and seal onto the rear wiper motor drive shaft.
  9. Install the rear wiper motor drive shaft nut.
  10. Tighten
    Tighten the nut to 6 N·m (53 lb in).

  11. Install the rear wiper arm. Refer to Rear Window Wiper Arm Replacement .
  12. Inspect rear wiper for proper operation.